845247716800 has 84 divisors (see below), whose sum is σ = 2084007643000. Its totient is φ = 337421214720.

The previous prime is 845247716771. The next prime is 845247716843. The reversal of 845247716800 is 8617742548.

It is a super-2 number, since 2×845247716800² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269062 + ... + 1327738.

Almost surely, 2^845247716800 is an apocalyptic number.

845247716800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845247716800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1042003821500).

845247716800 is an abundant number, since it is smaller than the sum of its proper divisors (1238759926200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

845247716800 is a wasteful number, since it uses less digits than its factorization.

845247716800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059198 (or 1059183 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 845247716800 in words is "eight hundred forty-five billion, two hundred forty-seven million, seven hundred sixteen thousand, eight hundred".